Study on structural variation of oxalate-oxodiperoxovanadate(V) from solid state to solution using NMR spectroscopy and theoretical calculation

Zeng, Birong; Zhang, Jun; Fu, Riqiang; Cai, Shuhui; Zhong, Cheng

doi:10.1016/j.inoche.2009.09.036

Cited by 7 publications

(2 citation statements)

References 18 publications

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“…Our previous work showed that oxalato-diperoxovanadium(V) is seven-coordinate pentagonal bipyramidal in the solid state, the same as the oxodiperoxotungsten(VI) complexes [19]. However, oxalato-diperoxovanadium(V) changes to six-coordinate pentagonal pyramidal when dissolved in water [23]. The coordination chemistry of peroxovanadium complexes plays an important role in in vitro insulin-mimetic activity and in vivo antidiabetic blood-glucose-lowering activity [24][25][26][27][28][29].…”

Section: Introductionmentioning

confidence: 99%

The structure, stability, and reactivity of oxalato-monoperoxovanadium(V) in solution

Zeng

Bao

Cai

et al. 2010

Journal of Coordination Chemistry

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In order to understand the solution chemistry of an oxalato-monoperoxovanadium(V) complex (K 3 [VO(O 2 )(C 2 O 4 ) 2 ] Á ½H 2 O, mpVox), the solid and solution-state NMR characteristics, transformation behavior, and exchange phenomena in the solution are described in this article. NMR experimental and theoretical results indicated that the vanadium of mpVox in solid and solution state are seven coordinate. However, some geometric parameters tend to change upon dissolution. The dynamic transformation of mpVox in solution was investigated using NMR, IR, and UV-Vis. The reduction product is oxalato-bisoxovanadate. Concentration, pH, and temperature affect this transformation. 51 V NMR investigation on the system of mpVox with picolinc acid showed that two oxalates are substituted to produce [VO(O 2 )(ox)(pic)] 2À and [VO(O 2 )(pic) 2 ] À .

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Section: Introductionmentioning

confidence: 99%

The structure, stability, and reactivity of oxalato-monoperoxovanadium(V) in solution

Zeng

Bao

Cai

et al. 2010

Journal of Coordination Chemistry

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“…Oxalato and oxalato peroxido complexes of vanadium(V) have been studied mainly due to their insulin-mimetic properties. The composition and structure of these complexes in solution have been investigated by potentiometry and spectral methods [2][3][4][5][6][7][8]. These studies revealed the existence of two dominant oxalato complexes characterised by 51 V NMR chemical shifts −532.6 ppm ([VO 2 (C 2 O 4 )(H 2 O) x ] − ) and −536.2 ppm ([VO 2 (C 2 O 4 )] 3− ) [2] and one dominant oxalato peroxidovanadium species [VO(O 2 ) 2 (C 2 O 4 )] 3− with a 51 V NMR signal at −738 ppm [8].…”

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confidence: 99%

(EnH2)2[V2O2(O2)4(μ-C2O4)] — The vanadium(V) oxalato oxido peroxido complex with a bridging oxalato group

Grešnerová

Chrappová

Schwendt

et al. 2011

Inorganic Chemistry Communications

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NMR Crystallography of an Oxovanadium(V) Complex by an Approach Combining Multinuclear Magic Angle Spinning NMR, DFT, and Spin Dynamics Simulations

Pourpoint

Yehl

et al. 2015

ChemPhysChem

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Bioinorganic vanadium(V) solids are often challenging for structural analysis. Here, we explore an NMR crystallography approach involving multinuclear (13) C/(51) V solid-state NMR spectroscopy, density functional theory (DFT), and spin dynamics numerical simulations, for the spectral assignment and the 3D structural analysis of an isotopically unmodified oxovanadium(V) complex, containing 17 crystallographically inequivalent (13) C sites. In particular, we report the first NMR determination of C-V distances. So far, the NMR observation of (13) C-(51) V proximities has been precluded by the specification of commercial NMR probes, which cannot be tuned simultaneously to the close Larmor frequencies of these isotopes (100.6 and 105.2 MHz for (13) C and (51) V, respectively, at 9.4 T). By combining DFT calculations and (13) C-(51) V NMR experiments, we propose a complete assignment of the (13) C spectrum of this oxovanadium(V) complex. Furthermore, we show how (13) C-(51) V distances can be quantitatively estimated.

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Study on structural variation of oxalate-oxodiperoxovanadate(V) from solid state to solution using NMR spectroscopy and theoretical calculation

Cited by 7 publications

References 18 publications

The structure, stability, and reactivity of oxalato-monoperoxovanadium(V) in solution

The structure, stability, and reactivity of oxalato-monoperoxovanadium(V) in solution

(EnH2)2[V2O2(O2)4(μ-C2O4)] — The vanadium(V) oxalato oxido peroxido complex with a bridging oxalato group

NMR Crystallography of an Oxovanadium(V) Complex by an Approach Combining Multinuclear Magic Angle Spinning NMR, DFT, and Spin Dynamics Simulations

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